一种新的基于规则点阵的图像畸变校正方法

New Method for Distortion Correction Based on Inerratic Lattice

面向数码相机普遍存在的畸变现象,提出了一种基于规则点阵的矫正方法。该方法先用相机对规则点阵进行定焦拍照,然后建立矫正关系映射表,再用不同焦距对应的映射表进行插值,形成连续映射关系,利用此映射关系即可对该相机拍摄的照片进行畸变校正,经实验具有较高的精度和很好的实用性。

A correction method based on inerratic lattice is presented in face of distortion problem to digital cameras. This method first uses the camera with given focus to take pictures of inerratic lattice and builds the correction mapping grid (CMG), then uses the CMGs of different focus to build the continuous mapping relations, and with these relations, correction to the pictures of this camera is practical. The experiments prove its high precision and good practicability.